55440305145020 has 24 divisors (see below), whose sum is σ = 116933045359200. Its totient is φ = 22079283095232.

The previous prime is 55440305145019. The next prime is 55440305145031. The reversal of 55440305145020 is 2054150304455.

55440305145020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6052430480 + ... + 6052439639.

It is an arithmetic number, because the mean of its divisors is an integer number (4872210223300).

Almost surely, 2^{55440305145020} is an apocalyptic number.

It is an amenable number.

55440305145020 is an abundant number, since it is smaller than the sum of its proper divisors (61492740214180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55440305145020 is a wasteful number, since it uses less digits than its factorization.

55440305145020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12104870357 (or 12104870355 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 38.

Adding to 55440305145020 its reverse (2054150304455), we get a palindrome (57494455449475).

The spelling of 55440305145020 in words is "fifty-five trillion, four hundred forty billion, three hundred five million, one hundred forty-five thousand, twenty".